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@mir2017lma Yeah, it’s been a little while since I’ve played with it, but there’s a Jack Daniel’s running calculator spreadsheet I had that you could estimate running time improvements at different weights. Should be able to find it with a google search… it was interesting.

@mir2017lma I’ve seen rough estimates of 2 seconds per mile per 1lb of body weight lost.

@tongdtbds3 Gotcha, that all makes sense and I agree. I’m also a larger/higher power cyclist. Big guys can put out a lot of watts and have excellent cardio function, but that doesn’t mean their VO2 max is high. I’d be a pro cyclist if I weighed 60 kg instead of 78 kg.

@tongdtbds3 Maybe high compared to other fat people? “Kg of body weight” is literally in the denominator of the unit for VO2 max. They do not have high VO2 max vs non fat people or less fat versions of themselves. I get what you’re saying but VO2 max isn’t the term to use.